Butterfly bowtie



FIG. 1 is a front elevation view of the butterfly bowtie, the strap not being shown for clarity of illustration.

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a top/rear perspective view thereof.

The solid black areas of shading in the drawings represent the color black. The features shown in dotted lines form no part of the claimed design. 

The ornamental design for a butterfly bowtie, as shown and described. 